21 King Street, Brynmawr, Ebbw Vale, NP23 4DG
About 21 King Street
21 King Street is a mid-terrace house in Brynmawr, Ebbw Vale, Ebbw Vale (NP23 4DG). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (December 2020) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 90), a 3-band jump. Main heating runs on electricity.
Untraded for 30 years, with the last transfer in August 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £116,000 sits 359.4% above the 1996 sale of £25,250. On a £-per-square-foot basis, the last sale (£38/sq ft) was about 64.4% below the postcode norm. At 62 m² it sits well below the postcode median (99 m² across 15 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 21 King Street
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
21 King Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
21 King Street has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
21 King Street's modelled value sits at over four times its earliest registered sale price (1996).
£116,000
Modelled from EPC, postcode comparables.
£25,250
Recorded with HM Land Registry.
Sales timeline
8 August 1996Most recent
£25,250
Median price across the last 5 sales in NP23 4DG: £137,000 (2025–2020).
Nearby sales in NP23 4DG
20 King Street, Brynmawr, Ebbw Vale, NP23 4DG
Sold Feb 2025
£92,50019 King Street, Brynmawr, Ebbw Vale, NP23 4DG
Sold Aug 2024
£208,000289 King Street, Brynmawr, Ebbw Vale, NP23 4DG
Sold Oct 2023
£95,000291 King Street, Brynmawr, Ebbw Vale, NP23 4DG
Sold Nov 2022
£195,00019a, King Street, Brynmawr, Ebbw Vale, NP23 4DG
Sold Mar 2020
£137,000
Everything we know about 21 King Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other King Street homes
On years held, 21 King Street stands well clear of the street.
Price per m²
£407
Street avg £1,181
Floor Area
62 m²
Street avg 103 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
6.7 t/year
Street avg 6.4 t/year
Similar properties nearby
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1 Clarence Street, Brynmawr
NP23 4EH
1 Brecnock Close, Brynmawr
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1 Aneurin Place, Brynmawr
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1 Blaina Road, Brynmawr
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The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Trafalgar House — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.